why searching for this "harry potter" star could be hazardous to your computer's health. captions paid for by nbc-universal television >>> hello, and very good morning to you. i'm veronica de la cruz. today we begin with still riding high. days after the democrats' convention ended, a new poll saying president obama enjoying a post-convention boost in popular. 47% favor president obama while 43% prefer his republican rival mitt romney. nbc's brian miller reports. >> reporter: the president of the united states may be considered the most powerful man on earth, but scott van doozen is no slouch. the florida pizza shop owner is a registered republican but a fan of the president, and clearly a really big fan. >> man, are you a power lifter or what? >> reporter: mitt romney opted for a slightly quieter photo on, going to church with his wife ann on a day when the focus was on the economy. >> this is a president that has not been able to deliver on his promises. >> when our opponent goes around saying that the nation is in decline, he doesn't know what he's talking about. >> re